Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 71c13a0920479857…

MALICIOUS

Office (OLE) / .DOC

152.7 KB Created: 2020-12-28 22:51:00 Authoring application: Microsoft Office Word
MD5: a8e48fa2cb6f794e5f73febd7302d089 SHA-1: c2f639b732c75a6b74ce7c93d89c2d18346767f8 SHA-256: 71c13a092047985721e0ab8520688323b25f7f28e0fed3e7a9bb9293a68a69d6
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File T1105 Ingress Tool Transfer

The sample contains a VBA macro that is automatically executed upon opening the document, as indicated by the 'Document_Open' macro and 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristic. This macro attempts to read from several hardcoded file paths, suggesting it is designed to download and execute a second-stage payload. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests the Emotet family.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
d65866a56f536df94b944d564f763521883c7d713205f64364dd856778217514		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6039 bytes

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